The table below shows the one-year return distribution of Startup Inc. Probability 25% 20% 20% 10% ?% Return -60% -75% -50% -25% 1000% a. Calculate the expected return. b. Calculate the standard deviation of the return. c. Replace the expected return of 1000% in the last column in the table above with the expected return value that minimizes the standard deviation of the returns. a. The expected return is %. (round to one decimal) b. The standard deviation of the return is %. (round to one decimal) c. The value of expected return in last column which minimizes the standard deviation of the returns is %. (round to one decimal. If negative, enter a minus sign "-".)